Calked sole



DEC. 22, lgg. H A SMITH 'fgao CLKED SOLE Filed Nov. 24, 1928 Y r 2126M25 26 ,.f INVENTOR Patented Dec. 22, 1931 .UNITED STATES 'noRA'rIo A.SMITH, or animamos, wAsnINGToN GALKED so'LE Application led November 24,1928. Serial No. 321,550.`

This invention relates to improvements in calked soles vand aimsprimarily to provide a calked sole thatis capable of ready adjustment tovarious sizes and types of boots or '5 shoes, that is especiallydesigned for rapid attachment thereto and similar removal therefrom,that is particularly adaptable for use by fishermen, hunters,loggers,.mountaineers, shinglers, and the like, and that will not becomeclogged whilein use. Y

Contemplated by the present invention is a self-cleaning iexible calkedsole embodying a vcalked sole section, a shank section hingedlyconnected to said sole section, a heel section.,

longitudinally adjustable upon said shank section, laterally adjustablemeans for securing the sole section tothe .shoe or boot of the wearer,means for securing the heel section to such shoe .or boot, and a serieslof integral calks of novel form Vdisposed in spaced relation upon theperimeters of the sole and heel sections, all of which are-importantobjects of the invention and are to be correlated in the broadaim of enhancing the efficiency -of thevdev'ice for general use. j

rEhe above, and additionalV objects which will hereinafter be more`specifically treated, are attained .by such means Vas are shown in theaccompanying drawings, described'in the following specification and thenmore clearly pointed outin the claims, which are appended hereto, andVform a part of this application.

With referencejtothe drawings in which there is illustrated oneembodiment of the invention, and throughout the several views .of whichlike Characters of reference designate similar parts.

Figure 1 VisV an elevation of a calked sole comprehended by thepresentinvention, as-

it would appear when attached and adjustably. secured upon a. shoe,which latter is shown in dot and dash linestherein.

Fig. 2 is a top plan view thereof, certain parts being omitted'andcert-ain other parts being shown. in sectio for clarity of illustration.i .l

Fig. Sis an elevation of the rearend of the same Fig. 4 is an elevationyof the front-end thereof. Y l V Figs.V 5 and 6 arevertical-transverse'sections taken through y'5e-5 and -6 6, respec-vtively, of Fig. 2. '55 Fig. 7 is a fragmentary horizontal -section takenthrough 7-7of Fig. l V F'g. v8 is ra similar sectionftakenfthrough 8--8of Fig. 6. j L

y Fig. 9 is a rfragmentarylongitudinal .sec-V 60 tion taken'through 9-9of Fig. 2. y Y, Fig. 10V is an enlarged fragmentary elevatigri of thetype of calk employed with` the so e.

cated in accordance with the present inven- -752 tion and comprising asole or forward section 17, to the rear end. of which is hinge'dlyconnected, as at18, a central or intermediate'section 19 having arelatively narrow rearwardly l extending integral tongue .20, to whichis adso Y justably secured a forwardly eXtendingintegral shank 21 of adownwardly voffset heel or rear section 22 having `the material at itsrear end bent upwardly to form a heel retaining portion 23. j Y j v 85The sections 17, 19 and 22are fabricated., from sheet steel, or thelike, 'anddisposed in spa-ced relation upon the perimeter .ofthe solesection 1-7 and similarly upon the perimeter `of the heel section 22 isa series of tri 90 angular corrugated calks 24, which arejstruckl fromthe material of said sections and bent downwardly from theedgesthereofsubstantially atright anglesthereto, the apeXes of .f

said triangular calks constituting sharpened j gripping points." Duringthe dielstamping 'j I or forming of the calks 24,the same-are flexed fto provide corrugations25 therein, whichlatter are formed in parallelrelation to the axes of the ca-lks, as lshown more clearly `1M.

Fig. 11 vis avertical transverse section lo5 Y Figs. and 12, this fortheV purpose of reinforcing such calks andfor providing a par-Vticularly rugged type of calk capable of considerable resistance againsttermediate vsection '19V is a central row of transversely disposedcalks-26, which are also ofA triangular and' corrugated formation. Byforming the calks 24 upon. the respective perimeters of the sectionsl 17and 22 in they mannerherein Vshown andl described, it will Vbe observedthat such calks are longitudinally disposedin substantially parallelrelation to the axes, of. their correlated"sections,-thus permitting ofany bending action or stress u p`on1the calks being appliedlongitudinally Y 1y prevent llodgen'ient of any foreign mat thereof [andnotv transversely, whereby any tendency of such calks to bend duringVrough v`usage is effectively minimized, for the reason that the load isimposed thereon in an edgewise'or sidewise direction, vand 4due to thererangement 'the present calked sole is self- ,cleaningy inasmuch vasthere is sufficient open `space Aand ilatfsurfaces'between the rows ofcalks, so that yany foreign matter or dirt is `ejected and cannot becomeclogged between thecalks.'

."Detachably secured," as by a screw 27, to

. the forward end of the Vsole section A17 'is a toe cap or protectivemember 28, adapted to normally abut the toe ofthe e-15, when the calkedsole is in use, whereat'such member functions to effectually preventdebris from finding lodgement between the forward end V,of the cal'kedvsole andthe sole of the shoe.

The sole ysection 17 lis provided substantial- `Yl midwa the lenf'rththereof Ywith a laterali 1 y y e d vdisposed downwardly offset channelor giuldeY 29', the bottom wall of said channel adjacent `its ends andat each side thereof having lugsy 30 struck therefrom,'which latter areretained 'in the plane of the sole section 17; Slidably interposedbetween the channel 29 and the' lugs 30 are Aangularly `formed' soleVvretaining members or keepers 31, the upwardly bent Vouter ends ofwhich are adapted to n normally 'abut` the sides of the sole o f theshoe 1 5, to thereby prevent si'd'ewise or lati Yeral dislodgement ofthesole section there- V 1 on, Formed and provided within v.each innerterminal portion of the sole retaining'members 31 are' slots 32 havingaseries of opposed of the rchannel 29Vare screws` gli, whi'c notches cutin the sides thereof. Selectivelyinsertible lwithin the notchcsr andthreadedlyengaged within the bottom wall serve'and functionto lsecurethe sole retaining members 31` in predetermined y distortion; VStruckfrom the sole section 17 and the inlaterally adjusted positions,vwithinand relative to the sole section 17, which positions are deter- :I minedbv and regulated in accordance with Y the `width of the shoe to whichthe calked sole is applied. It will be apparent and obvious from theforegoing and by reference tothe drawings that vertical dislodgement ordisplacement of the sole retaining members 31 from the channel 29 iseifectually prevented by the lugs'SO, which function to vmaintain suchmembers within said channel.

The sole section 17 is adjustably secured to the vamp portion ofthe shoe15 by' a sec- :tional strap 35 havingV its outer terminals riveted tothevouter ends of the sole retaining members 31 and having itsopposinginner terminals adjustably connected vby a frictional buckle 36. 1

- The tongue 20` of the intermediate section' 19 is provided withjalongitudinallyv disposed l' central slot 37 Yhaving aseries of opposednotches 38 cut in the sides thereof, said tongue s being also slidablyinterposed for longitudi-l nal adjustment between the shank 21 of theheel section 22 and a transverselydisposed stripY 39 of relatively lightdexible material, thefterminal portions of which are `flexed downwardlyVto pass through longitudinally disposed slots 40 formed within the edgeporitions of the'shank 21 andare return bent ther-eat to provideupwardly extending apertured terminals All. Tosecure the tongue 20 in apredetermined longitudinally adjusted position upon the sha-nk 21, ascrew 42 is provided, which eXtendsthrough Ythe strip39r and theselected notches ,38 of the tongue'20 and atits lower end is threadedlyengaged within. the shank 21. Straps 42 provided with elongated ringmembers 48 at their'forward looped ends have Atheir forward terminalportions slidably disposed within .the apertured terminals 1l andV alsorwithin the members 43 and at their rear looped ends'are engagedwithinvangularly disposed slots 44 formed within the vheel retaining portion23.

A sectionalstrap 45 having its outervlooped ends engagedwithin the Aringmembers i3 and having its opposing inner terminals adjustably connectedby a frictional buckle 46 is provided to adjustably secure the shank 2land heel section 22 to the heel or rear portion of the shoe 15. It willbe notedlby referring to the drawings, that by employing the type ofstraps herein shown and described,that such straps readily conform andautomatically adjust themselves to the contour ofthe heel or A,rearportion ofthe shoe 1,5 irrespective of the size or'type thereoiwhilealso fur.- iishing a rapidand efficient means for ad- Viustal' lvsecr-.rinfr Ytheheel section 22to the f i s v v shoe v15.

In attaching the flexible calked 'sole` l'to 'he hoe 15, the tongue20 islongitudinally adjusted'upon the shank 21 to vaccommodate such shoe, theretainingvmembers 31 are then laterally adjusted for the same reason,where- Y upon the calked sole is ready for attaching to the shoe, whichlatter is effected byadjustably securing the straps 35 and 45 with theirrespective buckles ,36 and 46 in an obvious manner.

Manifestly, therefore, the calked sole of the present invention isextremely simple, durable and economical in construction, is efficientand reliable in use, possesses the requisiteflexibility to assure ofease and comfort in walking, will not cramp the shoe or foot of thewearer, will effectually prevent slipping upon ioy or other slipperysurfaces, and will not mar or injure the shoes or boots when positionedthereon. l While I have herein shown and described my invention withsuflicient detail to enable those skilled in the art to understand themode of construction and the principles involved, it is to be understoodthat there is no intentional limitation herein to the specific form andprecise details of construction of the invention shown and describedexcept as expressly defined by the appended claims, and that variousmodifications of said construction may be resorted to without departingfrom the invention, or the benefits derivai ble therefrom. I alsodesire'to have it un- 1. rlhe combination in a calked sole for a shoe,`of a triangular corrugated calk struck from the material of said soleand bent downwardlyrat right angles thereto.

2. The combination in a calked sole for a shoe, of a triangular oalkstruck from the material of said sole and bent downwardly at rightangles thereto, said calk having a series of corrugations formed thereonsubstantially in the direction of the length of same.

3. The combination in a calked sole for a shoe, of a triangular calkstruck from the material of said sole and bent downwardly vat rightangles thereto, said calk having a series of corrugations formed thereonin parallel relation to its axis.

4. The combination in a calked sole, of a heel section having aforwardly extending shank portion provided adjacent its side edges withlongitudinally disposed slots, a

and return bent to provide upwardly extending apertured terminalsadapted tol receive means for securing said heel section to thel shoe.

In testimony whereof I afiix my signature.

HORATIO A. SMITH.

